Electronics Forum | Tue Jan 30 21:15:51 EST 2001 | davef
You seem to pretty far from shore to begin thinking about boats and floatation devices. Most laser trimmers are used by: * Semiconductor fabricators * Resistive component fabricators * Hybrid circuit assemblers Component fabricators and hybrid [
Electronics Forum | Wed Feb 07 09:46:20 EST 2001 | pjc
I need some guidance here. I've got a new board w/ a FBGA-48 package, Samsung CMOS SRAM. It's a full matrix BGA w/ 0.30mm-0.40mm ball diameter @ 0.75mm pitch. Balls are eutectic. PCB land diameter is 0.4mm. There are TSOP I 0.5mm lead pitch component
Electronics Forum | Tue Feb 20 16:33:08 EST 2001 | davef
Time, time, time. There just never seems to be enough!!! Eh? You�re correct. Depending on the material, some trays can take a high temperature bake, while other trays, in addition to tubes, and reels, require a low temperature bake. With this la
Electronics Forum | Thu Feb 22 20:53:44 EST 2001 | davef
You're not sposed to pull the mask from the BGA when reworking it!!!! ;-) Well, if you insist. You can be as fancy as you want. Basically, all you need to do form a dam to prevent the solder from flowing from the pad to the via and starving the
Electronics Forum | Thu Apr 05 08:02:33 EDT 2001 | brownsj
I used to work for a company called Intelligent Reasoning Systems Incorporated. http://www.irsinc.com based in Austin Texas. They manufactured two different AOI systems depending on the component packages you wanted to inspect. The good thing about t
Electronics Forum | Wed Apr 11 06:56:20 EDT 2001 | brownsj
Most of the component vendors I've dealt with will guarantee the solderability of the terminations for three years if the components are still packaged in a full reel. If the reel is part used we've kept them for 1 year and then used a wetting balanc
Electronics Forum | Wed Apr 11 06:56:46 EDT 2001 | brownsj
Most of the component vendors I've dealt with will guarantee the solderability of the terminations for three years if the components are still packaged in a full reel. If the reel is part used we've kept them for 1 year and then used a wetting balanc
Electronics Forum | Thu Oct 26 14:40:12 EDT 2000 | ptvianc
Hello: I have not seen a published formula for calculating the package weight that can be secured by molten solder. I have seen forumlas printed for tombstoning. From that aspect, we developed the following rule-of-thumb for first-order estimates:
Electronics Forum | Wed Sep 20 10:42:05 EDT 2000 | Erick Russell
Process control for Photonic soldering is based on the actual temperature of the component being reworked. If the desired temperature of the component for your process is 200C then that is the process temperature programmed. This is achieved by a cl
Electronics Forum | Thu Jul 20 15:37:53 EDT 2000 | Tekguy2000
These parts are flat chip resistor arrays that have 4 end terminations on each side. It looks liek an IC but is typically in an 0805 and 1206 package type with convex terminations. .031" pitch from termination to termination and .011" spacing between
